In that group, weekly church attendance skyrocketed from 31 percent in February 1950 to an all-time record for young adults of 51 percent in April 1957, an astonishing rate of change in seven years, implying millions of new churchgoers every year.

According to a September 2010 report by Nielsen, a media measurement firm, the Pandora app is a top-five-most-used app across all four major smartphone platforms in the U.S.; in January, the Pandora app was the No. 2 all-time downloaded free iPhone app and the No. 1 all-time downloaded free iPad app, according to Apple.